CVE-2024-41942
Description
JupyterHub is software that allows one to create a multi-user server for Jupyter notebooks. Prior to versions 4.1.6 and 5.1.0, if a user is granted the `admin:users` scope, they may escalate their own privileges by making themselves a full admin user. The impact is relatively small in that `admin:users` is already an extremely privileged scope only granted to trusted users. In effect, `admin:users` is equivalent to `admin=True`, which is not intended. Note that the change here only prevents escalation to the built-in JupyterHub admin role that has unrestricted permissions. It does not prevent users with e.g. `groups` permissions from granting themselves or other users permissions via group membership, which is intentional. Versions 4.1.6 and 5.1.0 fix this issue.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 4 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 5.2.1+ds1-1 |
| sid | Fixed | 5.2.1+ds1-1 |
| forky | Fixed | 5.2.1+ds1-1 |
| bookworm | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | jupyterhub | <4.1.6 | 4.1.6 |
| PyPI | jupyterhub | >=5.0.0,<5.1.0 | 5.1.0 |
| PyPI | jupyterhub | <ff2db557a85b6980f90c3158634bf924063ab8ba||<4.1.6 | 99e2720b0fc626cbeeca3c6337f917fdacfaa428 |
References
- https://github.com/jupyterhub/jupyterhub/security/advisories/GHSA-9x4q-3gxw-849f
- https://nvd.nist.gov/vuln/detail/CVE-2024-41942
- https://github.com/jupyterhub/jupyterhub/commit/99e2720b0fc626cbeeca3c6337f917fdacfaa428
- https://github.com/jupyterhub/jupyterhub/commit/ff2db557a85b6980f90c3158634bf924063ab8ba
- https://github.com/jupyterhub/jupyterhub
- https://github.com/pypa/advisory-database/tree/main/vulns/jupyterhub/PYSEC-2024-200.yaml
- https://security-tracker.debian.org/tracker/CVE-2024-41942
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.